Full Description

1. Purpose and Scope

1.1 This test method is used for the determination of dimensional changes of woven and knitted fabrics made of fibers other than wool when subjected to laundering procedures commonly used in a commercial laundry. A range of laundering test procedures from severe to mild is provided to allow simulation of the types of laundering found in commercial laundry. Five drying test procedures are established to cover the drying techniques used.1.2 These tests are not accelerated and must be repeated to evaluate dimensional changes for multiple launderings.

2. Principle

2.1 The dimensional change of woven and knitted fabric specimens subjected to washing, drying and restoration procedures typical of commercial laundering are determined by measuring changes in bench mark distances applied to the fabric before laundering.